Get rid of LVQ-port function unit... only used for redundant

multithreading, which has been gone for a long time.

--HG--
extra : convert_revision : 717d13455483c3adc7b7cbbcc5f7493d51867974

cpu/full_cpu/op_class.hh

@@ -51,7 +51,6 @@ enum OpClass {
     FloatSQRT,		/* floating point square root */
     RdPort,		/* memory read port */
     WrPort,		/* memory write port */
-    LvqPort,		/* load value queue read port (redundant threading) */
     IPrefPort,
     Num_OpClasses	/* total functional unit classes */
 };